<div class="col-sm-2">
    <a href="#" class="list-group-item active">用户管理</a>
    <a href="/admin/userlist" class="list-group-item current">
    用户列表</a>
    <a href="adduser.html" class="list-group-item">
    添加用户</a>
    <a href="#" class="list-group-item active">商品管理</a>

    <a href="productlist.html" class="list-group-item">
    商品列表</a>
    <a href="edit.html" class="list-group-item">
    添加商品</a>

    <a href="#" class="list-group-item active">分类管理</a>

    <a href="category.html" class="list-group-item">
    分类列表</a>
    <a href="addcate.html" class="list-group-item">
    添加分类</a>
</div>